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Evaluation of Refra...
Evaluation of Refractory Metal Concentrations in Nano-Particulate Pressed-Powder Pellets Using LA-ICP-MS
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- Guldris Leon, Lorena, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Thauront, J. L. (författare)
- PSL University Paris
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- Hogmalm, Johan, 1979 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,University of Gothenburg
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- Hulthén, Erik, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Malmqvist, Johan, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2022-07-09
- 2022
- Engelska.
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Ingår i: Minerals. - : MDPI AG. - 2075-163X. ; 12:7
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https://research.cha... (primary) (free)
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https://gup.ub.gu.se...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Whole-rock geochemical analysis is a standard method to measure the chemical composition of ores. Analysis of refractory ore metals such as Ta and W typically requires fused bead and acid digestion followed by inductively coupled plasma atomic emission spectrometry (ICP-AES) and inductively coupled mass spectrometry (ICP-MS). Since these techniques are time-consuming and expensive, there is a demand for methods that can quantitatively measure low elemental concentration of refractory ore metals using a less expensive and simple approach. This paper evaluates preparation and analytical procedures developed to obtain whole-rock element concentrations of ore samples and mineral concentrates. It shows that the production of nano-particulate pressed-powder pellets followed by LA-ICP-MS analysis of W and Ta ores can be used to determine, within the error margin, the concentrations of the refractory metals W, Ta, Nb, and Sn compared to a reference values obtained by solution analysis. The results have implications for developing a commercially viable method for analysis of refractory elements to benefit mineral processing given the simplicity and resource-efficiency of the combined pressed pellet production and laser ablation analytical methodology.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Nyckelord
- LA-ICP-MS
- trace elements
- bulk sample analysis
- nano-particulate
- pressed-powder tablets
- tungsten
- tantalum
- critical metals
- refractory
- metals
- columbite-group minerals
- rare-earth-elements
- laser-ablation
- deposit
- chemistry
- rocks
- trace
- Geochemistry & Geophysics
- Mineralogy
- Mining & Mineral Processing
- tantalum
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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